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Chrysocolla and Tanzanite Optical Properties


Tanzanite and Chrysocolla Optical Properties


Optical Properties

Luster
Vitreous, Greasy   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Present   

Dispersion
None   
0.03   
14

Transparency
Opaque   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.460-1.570   
1.685-1.707   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Orthorhombic   

Birefringence
0.023-0.050   
0.006-0.018   

Clarity
Gemmological Tables (2004) More from other references   
TransparentUlrich Henn and Claudio C. Milisenda   

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Chrysocolla and Tanzanite Optic Character

Chrysocolla and Tanzanite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chrysocolla and Tanzanite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Chrysocolla and Tanzanite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Chrysocolla and Tanzanite Transparency

Similar to their colors, Chrysocolla and Tanzanite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Chrysocolla is Opaque while Chrysocolla is Opaque in appearance.

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